Soren
You are the one banging on about the lack of accuracy of the 17pd and the breaking up of the APDS shell and the poor design of the APDS shell.
But you are the only one who hasn't provided any sources. Quoted is the web site to which I gave a link that gave the hit chances of the 17pd. Also quoted have been the firing trials, as well as live combat experiece.
So all we ask, is what are your sources. Otherwise your statements are built on quicksand